Apparatus for separating oil from water



y 31, 1932- JASCHAMBERGER 1,860,81 I

APPARATUS FQR SEPARATING OIL FROM WATER Filed July 15, 1929 Patented May'31, 19 32 PATENT OFFICE,

EULIUS SGHAMBERGER, OF ELIZABETH, NEW JER SEY APPARATUS FOR SEPARATINGOIL WATER Application filed July 15, 1929. Serial No. 378,260.

This invention relates to the separation of surface layers of materialfrom bodies of liquid, especially the removal of a film of oil fromwater. The invention will be fully understood from the followingdescription and the accompanying drawings, in. which Fig. 1 is aerspective view of a preferred 'form of my s imming or separatingapparatus, and

Fi 2 is a vertical section taken on the line A- in Fig. 1. f Referringto the drawings, a pair of rolls 1, 1a are mounted for rotation ontrunn'ions or shaft extensions 3 and bearing blocks carried by asuitable frame work. This may take the form'of sills 2, suitablyconnected bycross braces 2a. The rolls 1, 10 may be constructed of anysuitable material. For best results the outer surfaces 5-thereof shouldbe smooth in texture and free from irregularities. I have found thatglass, polished metal, 'or even woodor paper is suitable forthis'purpose. I have for instancesuccessfully used paste board rollscoated with oil resistant lacquer. r a

. Suitable-mechanism is provided for rotating the rolls, as for instancethe intermes'hing am 6, 6a suitably secured to trunnions or shafts 3 andadapted to be rotated in opposite directions by the gear 7, which inturn is mounted on the drive shaft 8 of an electric motor 9 or othersource of power. Alterna-' tively, a series of pulleys arranged on-thetrunmons 3 and carrying cable belts, one of which is connected with anelectric motor,

' one gallon per minute, the discharge stream of water from opening 15of the apparatus mag be used for, the rotation ofthe rolls.

closely adjacent the surface thereof I provide scraper knives or doctors-10,10a adapted'to remove thefilm of oil adhering to the rolls as thelatter rotateand transfer it to the tro hs 11,'11a which discharge intoa common discharge trough or pipe 12 leading to a receiver 13 or othersuitable place of disposal.

, so as to dip below the surface of the water i from which oil is to beseparated. This may be accomplished as shown in Fig. 1 by placing thefrom "c 2 over achannel or slfince-way 14 59 thru which the water flows,the fr e 2 being 1 second roll serves to retard the flow of thelongitudinally ofeach roll and In operation the. rolls 1,'1a areadjusted.

adjusted so that the rolls 1, 1a are partially submerged. e

A'baffie 16 extends below the surface ofthe stream at a point locateddown stream with respect to the rolls 1, 1a to prevent escape of anytraces of oil which may not have been picked up by the rolls. This oilwill accumu- 1 late on the. surface of the water between the baflle 16'and the roll 1a and eventually be picked up by the roll as it rotates.The baflie 16 thus serves to back, or bank, the oil against the roll 1a.As water carrying on its surface a thin film of oil passes under therolls 1, 1a which are rotated at a proper rate of speed, the oil film istransferred in whole or in part to the surface of the first roll 1 andis carried around thereon to the knife edge 10 which is setso as'toscrape off this film of oil and'direct it into the trough 11. Any oilnot picked up by the first roll 1 is caught by the second roll 4 V 1aas, it rotates in the opposite direction and is removed in similarmanner by the corre-!. sponding knife 10a and trough 11a. The

stream sufliciently to back, or bank, the excess oil between the rollsand permits the first roll to pick up most of the oil. I have, forexample, been able with a small skimmer equipped with rolls ofapproximately four inches diameter and twelve inches in length rotatingat a speed of one hundred revolutions per minute to remove from thesurface of a stream ofwater flowing thru the apparatus, oil at the rateof approximately usually desirable to provide a channel thru which thewater carrying a thin of oil is caused to flow, in which case thewallsof the channel ma serve as suitable supports for the rolls. ere such. anarrangement is used it is desirable also to so arrange the channel thatthe rolls contact with the surface of the stream throughout its entirebreadth. The device will usually Be stationary but I contemplate alsomounting it for movement with respect to the liquid to be operated upon,While the invention has been described as applied to the separation of asurface la er 5 of oil from water, it will be understood t at otherseparations can be similarly efiected such as the separation of oil'from melted parafiin and the like. Other modifications will suggestthemselves'to one skilled in the art and while I have described myinvention with reference to certain specific details, I wish to claimall modifications and utilizations which come within the spirit andscope of the invention. I claim LApparatus for removing floatingmaterial from a liquid, which comprlses a channel for conveying theliquid, a plurality of spaced rolls each extending transversely acrossthe channel in position to dip into the liquid, means for rotatingadjoining rolls in opposite directions with the under-surface of theroll u stream rotating in the direction of travel 0 the stream, andmeans for removing and collecting material adhering to the rolls. i

2. Apparatus for removing a floating surface layer of material from aliquid, which comprises a channel for conducting the liquid, :1 rollextending transversely across the channel in position to dip into theliquid, means ,for rotating the roll with the undersurface of the rollrotating in the direction of travel of the stream, a baflie extendingacross the channel down stream with respect to the roll in position todip into the liquid to bank the material passing the roll agamst thedown stream'side of theroll, and means for removing and collectingmaterial adher- 40 ing to the roll.

' 3. Apparatus for removing floating material from a liquid, whichcomprises a channel for'c'onductln the liquid, a plurality of spacedrolls 'eac extending transversely across the channel in position to dipinto the liquid, means for rotating adjoining rolls in oppositedirections with the under-surface of the roll upstream rotating in thedirection of travel of the stream, means for removing and collectingmaterial adhering to the rolls, and a baflleextending across the channeldownstream with respect to the rolls in position to" dip-into the liquidto back the material passing the rolls against the downstream roll.

JULIUS SCHAMBERGER.

